Reactivation process for iridium-containing catalysts using low

Details Reactivation process for iridium-containing catalysts using low Reactivation process for iridium-containing catalysts using low

1982-05-05

1984-04-24

Konopka, P. E.

Catalyst, solid sorbent, or support therefor: product or process

Regenerating or rehabilitating catalyst or sorbent

Gas or vapor treating

208140, 502 35, 502230, B01J 2396, B01J 2346, B01J 2364, L10G 35085

Patent

active

044448953

ABSTRACT:
A process is described for reactivating agglomerated iridium-containing catalysts such as Pt-Ir on Al.sub.2 O.sub.3 reforming catalyst. The agglomerated catalyst is decoked to remove carbon deposits; treated with hydrogen to reduce metal oxides to the free metals; pretreated with hydrogen halide to provide at least about a 1.3 weight percent halide content; and treated with a low mass flow rate of chlorine of about one gram chlorine per 100 grams catalyst per hour. Use of a low mass halogen flow rate significantly retards ferrous metal corrosion and significantly reduces the quantity of chlorine normally used in achieving high redispersion values.

REFERENCES:
patent: 3937600 (1976-02-01), Yates et al.
patent: 3939062 (1976-02-01), Sinfelt et al.
patent: 3941682 (1976-03-01), Kmak et al.
patent: 4359400 (1982-11-01), Landolt et al.

Affiliated with

Also associated with

Rating

Reactivation process for iridium-containing catalysts using low does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reactivation process for iridium-containing catalysts using low , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reactivation process for iridium-containing catalysts using low will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-116323